Belousov, K. I., L. A. Nazarova, and A. V. Roiter. “Finitely Represented Dyadic Sets and Their Multielementary Representations”. Ukrains’kyi Matematychnyi Zhurnal 49, no. 11 (November 25, 1997): 1465–1477. Accessed May 21, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/5146.